A client who wants to build a plant identification database has sent you the E/R diagram below to convert to a relational model and imnlement as a database. This is not a good E/R diagram. Why? Select ALL applicable reasons. a. Spaces are not permitted in attribute names b. An attribute can't be shared between entities c. Cardinalities like '21' are not allowed d. There is a ternary relationship e. By convention, cardinality is only given between entities (not attributes) f. Entities are connected without explicit relationships g. Cardinalities like B and x are inadvisable (use n or m ) h. The arrow is meaningless